On 2021/4/19 下午9:20, Gervais, Francois wrote:
Please provide the following dump:
   #btrfs ins dump-tree -b 18446744073709551610 /dev/loop0p3

I'm wondering why write-time tree-check didn't catch it.


I get:

root@debug:~# btrfs ins dump-tree -b 18446744073709551610 /dev/loop0p3
btrfs-progs v5.7
ERROR: tree block bytenr 18446744073709551610 is not aligned to sectorsize 4096

My bad, wrong number.

The correct number command is:
# btrfs ins dump-tree -b 790151168 /dev/loop0p3


We have an unusual partition table due to an hardware (cpu) requirement.
This might be the source of this error?

Disk /dev/loop0: 40763392 sectors, 19.4 GiB
Sector size (logical/physical): 512/512 bytes
Disk identifier (GUID): A18E4543-634A-4E8C-B55D-DA1E217C4D98
Partition table holds up to 24 entries
Main partition table begins at sector 2 and ends at sector 7
First usable sector is 8, last usable sector is 40763384
Partitions will be aligned on 8-sector boundaries
Total free space is 0 sectors (0 bytes)

Number  Start (sector)    End (sector)  Size       Code  Name
    1               8           32775   16.0 MiB    8300
    2           32776          237575   100.0 MiB   8300
    3          237576        40763384   19.3 GiB    8300

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